Flush-tank valve mechanism.



No. 828,582. PATENTED JULY 24, 1906, R. E. BRISTOW.

PLUSH TANK VALVE MECHANISM. PPLIUATIUN FILED un. 21, 1905.

2 SHEETS-SHEET X.

No. 826,532 PATENTE) JULY 24, 190s.

PLUSH TANK VAWBMEGHANISM.

APPLGATION FILED PR.2I| POE.

2 SHEETS--SBEET 2.

UNITD srnfrnsirnnr OFFICE..

RALPH E. BRSTQW, 0F DENVER, CQLORADO.

` FLUSH-'TANK YVALVE MEoHAmsm.

specification er Letters resent.

resented July 24,1906.

Applicate niet prix 27, ms. sem No. attesa.

lowing to be a. full, clear, and exact descri tion.of the invention, such as will enel) e others skilled n the srt to which it appertans to make and use the same.

,My invention relates to the construction ofiV vlve mechanism for the control of the inlet and outlet valves of flnshtanks or similar devices wherein the inux and efflux of the Water or other fluid is desired to be regulatedA and controlled in predetermined nenes',

and has for its oblect to Yprotu'de e cient means whereby the noise due to -the operation of the device is minimized, the maximum et.

lieieney of the flushing operation is obtained without Weste ofwater, and the valves are so entnated and controlled that weer is greatly decreased.

j To this end my invention, generally stated, ma be sai d to reside in a eonstruetion'wherein t e inlet-valve is locked in aelosed position while theoutlet-valve is locked in an open po sition yend wherein the 'inletw'alve is opened simul taneously with the closure of the outlet valve and is looked in such open position until.` the desired amount of water has been admitted, when it is immediately and fully .loserL There are other minor features of invention residing in partieuler combinations and elemental construction, all as will hereinafter more fully appear. Y Y

. In the drawings chosen for the purpose of illustrating my invention, the scope whereof is pointed ont in the claims, Figure 1 is a ver- -1 tical seetionof a tank..V to which my valve-V controlled mechanism V1s ap lied, such con-Y trolling mechanism being siown partly in seetion and partly in elevation in the relativeV :osition the parte occupy when the tank is' ull of Water and both valves are closed. Fig.'

2 is a View taken in the same plane as Fig.' 1, but showing the outlet-valve locked in an open in. a e used position. Fig. 3 is a viewtalren in theV same plane as Figs. 1 end showing the relative positions ol' the 'esterelYY arts of the structure at the instant the ont et-valve has closed and the inletwalvehas' opened. Fig. 4 is an enlarged detail View,

' of the inletfvalve is Viotitlef-raitre is locke 'i the master or controlling osition while the inlet-valve looked! partly in elevation and partly in vertical section showing the outlet-valve and its looking mechanism, the valve bein shown closed in full lines andopen in dette lines. Fig. 5 is an enlarged detail section of the inlet-valve, taken on the lne 5, Fig. 2. Fig. 6 is a hor zontal section on the line 6 6, Fig. 4. Fig. 7

of the inlet-valve stem, and the adjustable slide member whereby the extent of openin overned and the sai by cooperation with ioat. Figu is an inverted plan vewo the Washer by which the gasket of the inlet-valve is secured in position.

Like symbols refer to like parts Wherever they ooeur.

will now proceed to describe my invention more fully, so that others skilled in the art to whioh it appertains may apply the same.

I n the drawings, A is a tank having `e. suitable outlet-valve seat 1, secured in an opening therein oy e threaded nut 2 the up er por* tion of said valve-seat Within the ta A being'provided with an annular flange 1, between Vwhich sind the tank a gasket auch as 'is an enlarged detail View showing a portionV 3, is interposed to form a tightV joint. YPref-` Y erably formed integral with said outlet-valve let-valve when the Water in the tank rises above the normal level said outletfvalve seat is also preferably formed with integral' perorated legs 6 6, extending laterally outward trom the annular flange 1% thereof. The outlet-valve 7 may be of eny suitable onstre'stion such as a velve-body portion 'havin a rubi er gasket 8 secured tothe und er side t ereofv-b a WasherV 9 and oserei# i0, said, washer 9 eing preferahlyprovided with a piurelty of downwardly-extending' periph-y .emily-arranged ideV lugs, prongs, or' ngere Q, hymeans n which said outlet-vaive is "geided and maintained central! of its velveseat. The bod ortion of sei outlet-valve isalso reeralxlp formed with s lug P, extending,r aterally rom the peri her thereof to' engage one arm of the ove owever in a Ythe overlowever which aetuates vthe out#w seat 1 is an upwardly-extending braeket 4, f which forms alreeper for the outlett'edyeV latch, as will 'hereniafter a pear, and which,Y by its bfureated upper en 4, forms a iguide otter ICO IIO

which forms both ahousing and a 6o, means of'a washer 21 and a screw 22.

p recess or indentation 21. 6 5 the inlet-valve is preferably cast With an anpurpose which will herein- The outlet-valve latch 13, which is movable bodily with the outlet-valve as well' as pivotally with Arespect thereto, is preferably in the form of a bell-crank lever having one i 5`of its arms housed within the vertically-extendin slot of the valve-stem, the other arm thereo extending laterally outward to engage suitable means, such as a rod 14, yfor transmitting the movement of the operating-` zo lever to the said lock or latch 13 and the outlet-valve 7 and to afford means for releasing the said latch by the action of the masterfloat, as will hereinafter appear.

Preferably at the upper. end of that arm of 'z 5i the latch 13 which is housed within ,the valve,-

stem is formed the `locking, head or lug 13l said 1u or head havin its under side'curv or inclined downward y to correspond with the similarly curved or inclined portion .of

3o the` bracket`4, with whichit engages when I the outlet-valve 7 is 'locked inopen position.

Said arm of the latch 13 is also preferably of such length that it is maintained within the bifurcated ends 4 of .the bracket when, the A said outlet-valveis closed, the latch by this means being guided and constrained to move in its pro' er path in a very simple manner.l

The i'n et-valve seat 16'may be secured in an o ening in thel tank A in a manner similar 4o to t e outlet-valve seat 1 by means of a threaded nut 17, that portion of the valveseat Within ,the tank being pr vided with a peripheral flan e, between w 'ch and the oor of the tan is interposed a gasket, such as 18. Extending upwadl upon opposite sides of the o `ening in the in et-valve seat or ttingl an referably cast integral therewith arethe ugs orbrackets 16* 16, said` lugs-,beingperforatcdzto receive a member,

5o as the Apin'25, which passesthrough aV slot 26 in the inlet-valve stem 23 and serves to maintain said'valve in proper position and to limit the extent of o ening thereof.

. The inlet-va ve may be comprised of a body portion,s uch as 19, having a lurality of `guide-lugs 19a extending upwar 1y from the periphery thereof to maintain the valve mprouelizielation with its seat, a rubber gasli-513.20 beingafhxed to said body portion by Washer 21 is so formed as to permit the introduction of the valve wi thin the valve-seat casting, as-by forming in the edge thereof'a The Vstem '23 -of .permitted to close.

nular disk 24, located above the guide-lugs 19 and extending laterally over the valveseat o ening to serve as a deflector for the iniiowmg water when said valve is open, thus preventing noise due to this cause. Above he defiectr 24 the valve-stem 23 is referably provided with means, such as a s ot 26, adapted to coact with a guide member, suoli as t e pin 25, to thereby, maintain the valve in proper alinement during its operationand to overn the extent of opening of said inletva ve. Preferably mounted on a slide 27, ,which is movable in a boo vie 28 of the inlet- `valvestem 23; and W 'ch is adapted to be fixed with respect to said valve stern by means ofthe screw 29is-the inlet-valve locking-lug 30, said lig havingitsI upper and under faces substantially concentrically curved to`cor1espond with the faces of the coacting latohin member 35, operated by the mastergTo the up er end of the inlet-valve stem 23 is secure the inlet-valve float 31,

said float being preferably arranged to be comi pletely submerged when the inlet-valve is closed in order to increase the buoyant force acting thereon, and thereby cause aA ra id and positive closure of said valve. By t 's means also, it will be observed, any leakage of the inlet-valve itself increases the buoyancy of theinlet-valve ioat, and thus acts to more tightly close the valve.

Pivoted upon the pin 25, which, it will be noted, is the common means to ide and limit the moyement of the 4inlet-va ve, is the master-float 32, the stem 33 whereof is provided with an arm 34, extending radially from the pivot-pin 25 and carrying thereon a lug or ro'ection 35, which is adapted to coact wit the locking-lug 30 of the inlet-valve to' control vthe operation of said valve, said lu 35 having its upper and under faces suitab y formed to co erate with the proper faces` of the said 'locking-lug 30.

The stem 33 of the master-float 32 is pro1 vided with suitable means, as a lug `or pin 36, for engaging the laterally-extending arm of the outlet-valve latch 13 to tri or re ease the latter when the master-Hoet as assumed a loweredposition, the outlet-valve being thus l Such lug or pin 36 is also referably utilized as a 'means of operating tIlJie overfiow-lever 37, the latter for this purpose having a portion 3'8, which is adapted to lie above and extend transversely acrossthe path of travel of said lug 36 when said parts are in contact.

TheoverfloW-lever 37 may be pivoted to the lugs 6 6 of the outlet-valve-seat casting 1 IOC llO

by a pin 40, such overfiow-lover-having an arm or portion 39, adapted to lie beneath the lug'7 of the outlet-valve and to coi'iperate therewith to open said outlet-v alve whenever the water in the tank rises above its no1 .mal level.V A

eseeee chain 42 or the like and at the other end e rod 14, the latter being connected to the latorally extending arm of the outlet valve latch i3 at a. point eccentric of its pvot.

The construction being substantially such as hereinbeore pointed out, the operation of the device will be as follows: Assumin the tank to be filled and both valves close asV shown in Fi 1, a downward pull upon the chain 42 wil actuate the cperating-lever'l which, acting through the rod 14,` connected thereto, causes the outlet-valve 7 to assume an open position, the latter being locked in 'such open position by the engagement of the lookin Phead 13' of the latch 13 with a portion o the bracket 4 of the outlet-valve seat or fitting ll, said latch 13 being caused to assume such locking position by reason ofthe eccentric pull of the rod 14 thereon.V As now the Water-level in the tank lowers and before ithasreached a point which would uncover the inlet-valve float 31 suflciently to permit the inlet-valve to open were it free to do sc the fall of the master-float 32 causes the lug Y o r projection 35, carried by the arm 34 of the Hoet-stem 33, to enga e the locking-lug 30 of the inlet-valve (see lg. 2,) thus ositively lookin the in et-valve closed. 'l'hen the Waterevel in the tank has fallen toits lowest Y desired level, which is referebly at such a point that the outlet-va ve is still submerged,

the trip ing or in 36, carried by the steinV 33 of the'masteroat 32, engages the inter-ail extending arm of the latch 13 and unloc '37, causing t e latter to move the outletfvelve, which instantl closes. At this instant the lug` 35, Inova ie with the master-'float, is disen aged from the lochinglug 30 of the inlet-veve,` 'emitting the latter to open, ars-shown in As the water new ows into thetank ough the inletf valve the master-neat B2 is raised and the' lug 35 thereb moved into position to engage the up er si e of the nletvalveocking lug 3U, suc lu s 30 and 35 remaining in engagement and ocking the inletvalve open until such time as the master-doet has returned to its normal position at which instant the said lu are disen aged and the buoyancy ofthe su merged i et-vave oat 31 causes the immediate and complete closure of lthe said inlet-valve.- If from any cause the water in o the tankrises above its normal evei, the pin or projection 36 of the master-float stem 33 engages the ortion 3S of the overflow-lever slightly upon its ivot and the arm 39 thereof to open the out et-velve by engagement with the lug- 7 Y of the said valve.

Having thus ldesm'ibed my invention, what I claim, and desire to secure by Letters Patent, ie-

1. lIn a mechanism of the character indicated, the combination with an outlet-valve,

' ing member w allynctuated valve with, a, valve-operatic of a locking-latch pivoted thereon and movable therewith, a member with which said latch lis adapted to engage to lock the valve in open position; andY means for opening said visive, saidY opening means being connected to said latch at a point eccentric of its pivot whereby said latch is caused to positively Ymoveintc enga ement with said latch-engagen the valve is opened, an said valve being moved to an open osition throu htheinterrnedieo of saidlatc 2. n a mechanism o the character indicated, the, combination'with a valve Liavina t slotted stem, of a locking-latch housed wi in said slottedV stern, a valveseat, and a bracket forming a guide for saidvalve and said locking-latch. I

3. In .a mechanism of the character indi cated, the combination with an automatice of a float and a latch ing member movable by said float into two engagin positions with said valve, in one position o the engaging parts the valve being locked open and 1n the other position the valve being iocked closed.

4, ln e mechanism of the character indicated, the combination with a float of an outlet-valve, and an overflow-lever adapted to engage said float and seid valve to open the latter.

5. In a mechanism of the character indicated, the combination with a pivcted iioat, V0f a ipivoted overflow-lever having an erin adapted to be actuated by said float and an erin adapted to engage said valve toopen 'the same.

6, In a mechanism ofthe character indicated, the combination with a master-Hoet, of an inlet-valve havin a locking-lug on the stem thereof and provided with a float, of an outlet-valve having a locki thereon, means o erative' b t e master-lient for releasing sai lochmgetch, and means also operative by 4acidY master-float for rc ystraining the movement of said inlet-valve.

7.. In amechanism et the character indicated the combination with a valve, of a lock ier said valve, en overow-lever, and means adapted to independently actnate both said ioclr and said overflow-lever. Y

8.' In amechanism of the character indicated, the combination with an inlet-valve, of anontlet-valve havi a looking-latch pivoted thereon and bodi y movable theremember adapted to positively actnate said atch,and a stationery member engaged by saidlockingdatch, c l

9. vIn a mechanism cf the character indicated, the combination with en outlet-valve, of a locking-latch pivoted thereon, meensior opening seid valve throu Y1 said latch, a staF tionary member' adapte 4to be engaged by said iooki dutch, and devices independent of said latld and said stationary member for releasing said latch.

IOO

-latch pivoted Y 10. In a mechanism of the character ,dicated, the combination with a masteroat having a locking-arm attached thereto, of a valve, means for opem'n and closing said valve, and a locking mem er carried b said valve in position to be enga ed by sai locking-arm l1n both open and c osed positions of the valve.

11. `In a mechanism of the character indicated, the combination with a verticallymovable outlet-valve, of a suitable guide for said valve, a lever pivoted on said valve, one

arm of said lever constituting a latch, a member with which the latch-arm of the lever is adapted to engage to lock the valve in open position, and means for actuating the latch through the intermediacy of the other arm of said lever. A

In testimony whereof I affix my signature in presence of two subscribing witnesses.

RALPH E. BRISTOW. Witnesses: i

LOUISE Bmsrow,

P. S. HoDGKINs. 

